Where does “ist” come from?

ist (Middle High German) comes from Old High German ist, from Proto-West Germanic *ist, from Proto-Germanic isti, from Proto-Indo-European h₁ēs- — to be.

Ancestry of “ist”, step by step

StepLanguageWordMeaning
1Old High Germanist—
2Proto-West Germanic*ist—
3Proto-Germanicisti—
4Proto-Indo-Europeanh₁ēs-to be

Words derived from “ist”

Every word from Proto-Indo-European h₁ēs- →Every word from Proto-Germanic isti →Every word from Proto-West Germanic *ist →